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heres the deal elliminated cat never threw a code till last night after sliding off the trail and had to ride it hard to get out its my rear o2 sensor thats toast any ideas how to elliminate it cost effictively???

empire's replaces the sensor completely, so $115, plug it in, done for life.

urd's you spend $110, splice into your existing o2 senor wires, done until your sensor goes bad, and then you have to replace it for another $70.

They both do the same thing. Empire's generates the complete signal and shows the ecu what it wants to see, and urd's takes the "wrong" signal from your stock sensor and shows the ecu what it wants to see.

even if the ecu needed the rear sensor to calibrate af/r, why would it when the urd sim is giving it the right signal?

like I said, they both do the same thing, but empire is the cheaper (and easier) option in the long run. I currently have empire's sim on my 2wd and everything works great. I have never used urd's,and don't not have a problem with it, or them. this is just my opinion.

Thats not how URDs works. If your sensor goes bad, it will still receive power, and thats all the sim needs. I will say that on second thought, the Empire o2 sim will be better for the OPs application because he probably doesn't even have a sensor in there anymore, so there would be nothing to tap into.

Thats not how URDs works. If your sensor goes bad, it will still receive power, and thats all the sim needs. I will say that on second thought, the Empire o2 sim will be better for the OPs application because he probably doesn't even have a sensor in there anymore, so there would be nothing to tap into.

I saw the link and read the post, however i'm not seeing any feedback and need for sure answers. I also don't see that method being used on a newer motor.

I've got an 01 3rz in my 80 pickup. I'm having my exhaust made and weighing my options. I'm not 100% sure the donor cats are good. The motor features the dual cats. I've read eliminating one sometimes still shows a code. Factory cars are expensive, aftermarkets aren't bad. But trying to weigh my options. I'd preferring running no cats and no codes. But also looking into the $70 magnaflow cats, but if it turns out two is needed to not throw codes I just wasted more then the cost of a sensor delete.

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Thanks. I was thinking about leaving the heater on the O2 sensor also. Glad to know this will work. Hopefully ill get a chance to swing by radio shack before the end of the weekend get the parts and install them.

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Did it this weekend with the signal wires. Left the black wires for the heater alone. Light came back on today,but is now a P0136 (circuit sensor malfunction). Here is a pic of what it looked like before I tapped it all up. I'll try and inspect it tonight and make sure it is all still intact. Also I used the parts I linked a few post ago. Even showed the guy at radio shack the website for each part to get the right ones.

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I have come here to chew bubblegum and kick ass....and I'm all out of bubblegum.
My middle finger gets a boner when I think of you.

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I have a working cat. Replaced it along with a bunch of other shit chasing this problem 2 years ago. Got tired of no results so quit chasing it till lately as I've moved to a county that requires emissions testing. Got inspected before I moved so I have a little time but still have to fix this. Toyota wants 1 or 2 grand for factory cats and I say bull shit to that. I'm not trying to run without a cat just fix this without spending an arm and a leg.

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I have come here to chew bubblegum and kick ass....and I'm all out of bubblegum.
My middle finger gets a boner when I think of you.

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I have a working cat. Replaced it along with a bunch of other shit chasing this problem 2 years ago. Got tired of no results so quit chasing it till lately as I've moved to a county that requires emissions testing. Got inspected before I moved so I have a little time but still have to fix this. Toyota wants 1 or 2 grand for factory cats and I say bull shit to that. I'm not trying to run without a cat just fix this without spending an arm and a leg.

Oh ok. I have ran aftermarket cats a few times without issue, but not in my Tacoma yet... Yeah the factory cats are pricey.

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*Now available with 2HP ELECTRIC/HYDARULIC and auto rotation stops!

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